CVE-2026-8790 Football Pool <= 2.13.4 - Authenticated (Subscriber+) Reflected Cross-Site Scripting
Attackers can execute arbitrary scripts in the browsers of authenticated users via a reflected XSS vulnerability in the Football Pool WordPress plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-8790?
CVE-2026-8790 is a medium-severity cross-site scripting vulnerability in antoineh Football Pool, published on 5 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The Football Pool plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the `shouttext` POST parameter of the Shoutbox widget in all versions up to, and including, 2.13.4 due to insufficient input sanitization and output escaping. When a shoutbox form submission fails the nonce check (or `shouttext` is empty, or the user is unable to save), the raw POST value is echoed back into a `<textarea>` element using `printf('%s', ...)` with no HTML escaping. This makes it possible for unauthenticated attackers to execute arbitrary web scripts in the browser of an authenticated victim (Subscriber-level or higher) who is tricked into submitting a crafted POST request to a page that contains the Shoutbox widget.
Weakness: CWE-79
Which versions are affected by CVE-2026-8790?
How do I fix CVE-2026-8790?
No fix has been published for CVE-2026-8790 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-8790 being exploited?
There is no known exploitation of CVE-2026-8790 in the wild and no public exploit code.
Sources
Also known as GHSA-jq74-qc6v-q6x5.